摘要：
from:https://www.ghostscript.com/download/gsdnld.html https://www.codeproject.com/Articles/317700/Convert-a-PDF-into-a-series-of-images-using-Csharp h 阅读全文
摘要：
// A delegate type for hooking up change notifications. public delegate void ProgressChangingEventHandler(object sender, string e); /// <summary> /// 阅读全文